Commit graph

21 commits

Author SHA1 Message Date
Andreas Gampe
1923e768ef Base: Add default tag manipulation
Allow the default tag (the program name) to be overwritten.

Bug: 34867873
Test: m
Test: logging_test
Test: manual
Change-Id: I4ef32bad413a7cc82e46ce16a2f26212925964b1
2018-03-06 14:45:11 -08:00
Tomasz Wasilczyk
c251600102 Use LOG_TAG instead of binary name as a tag.
If LOG_TAG was not defined, falling back to a default
behaviour (using binary name).

Bug: 35361699
Test: manual
Change-Id: I209a6ebaf0df882f98642f6d1831766cb296c951
2017-12-20 10:59:46 -08:00
Andreas Gampe
c8f935aa5e Base: Warn on using ostream<< with std::string*
In most reasonable cases, this is actually a bug. So add a diagnostic.

Test: m
Change-Id: Ib506b45dbdbafcb1893486b08ef13ec8f11d0357
2017-09-22 16:25:58 -07:00
Andreas Gampe
2db3823632 Revert "Base: Delete ostream<< with std::string*"
This reverts commit 4ef5011a7b.

Reason for revert: Breaks an internal mocking case that cannot be changed.

Test: m
Change-Id: I83f9338bde02eb2b45b3e52b66ef78490ddbeeda
2017-09-21 17:53:00 -07:00
Andreas Gampe
4ef5011a7b Base: Delete ostream<< with std::string*
In most reasonable cases, this is actually a bug. So delete the
operator overload and let the compiler complain.

Test: m
Change-Id: I7d66ec2f33cc46588b6f549876241871f19ce995
2017-09-20 10:54:20 -07:00
George Burgess IV
6466ced8f6 logging: make LOG(FATAL) always run with the static analyzer.
::android::base::GetMinimumLogSeverity() is defined externally, so the
static analyzer was allowed to assume that we continue executing after a
LOG(FATAL).

I manually audited all of the code I have access to, and the only
"change the minimum log severity" statements I can see keep FATAL
enabled (...and continuing after a FATAL is highly sketchy to me
anyway).

(I'm sure I tested this at some point in making the previous patch. I
probably broke it in a refactor before sending it out for review; my
bad. :) )

Bug: None
Test: m without the static-analyzer builds; m with it yields fewer
false positives.

Change-Id: I216cd2034e1daa8d6f6c5e776f64b4cce88bb938
2017-05-31 14:41:22 +00:00
George Burgess IV
7e771de38f logging: always enable DCHECK for the static analyzer
This helps us have less false-positives.

We do this instead of `#undef NDEBUG`, since undefing NDEBUG actually
gave us more false-positives (...and build breakages) than simply
leaving it defined.

Bug: None
Test: Ran the static analyzer across internal master. 213 fewer warnings
(15 Medium, 2 Low, the remainder are 'Analyzer'). All of the dropped
warnings I audited were false-positives. It adds ~3 Tidy warnings.
Change-Id: Ibedab60ca7e9d2b0772896222b83d2e7ab064afe
2017-05-26 11:04:48 -07:00
George Burgess IV
582ec2b078 fix static-analyzer logging/CHECK macros
Two small changes in one:

- `foo || for (;;abort()) bar();` isn't valid C or C++, since for is a
  statement. We need an expression instead.
- we'll now treat everything after LOG(foo) as unreachable in the
  static analyzer, as long as we can prove at compile-time that
  foo == FATAL.

The impact of this, running across internal master, is that we see ~50
fewer medium/high-severity false positives from clang-tidy. We see 15
new complaints about unreachable code (at the "tidy" severity), but all
of them are harmless AFAICT (e.g.

switch (foo) {
  // ...
  default:
    LOG(FATAL) << "Unhandled case!"; // or CHECK(false);
    break; // clang-tidy: unreachable break.
})

(Some of the macros were forcibly formatted by the clang-format hook)

Bug: None
Test: Ran
`DEFAULT_GLOBAL_TIDY_CHECKS=clang-analyzer*,-clang-analyzer-alpha* m`;
stared at warn.py output.

Change-Id: Ie984eda0481afad4274b9def7c61ba777cfa289a
2017-05-03 17:16:01 -07:00
Elliott Hughes
9f4c8f753b Add some basic docs for <android-base/logging.h>
Bug: http://b/35360600
Test: N/A
Change-Id: I3de6bbe4afc7ca6adbfb0c9b01a5a3d4c2c35cfc
2017-02-22 18:02:46 -08:00
Andreas Gampe
1f5fb43047 Base: Remove LOG_S variants.
Partially reverts commit 436f5a031f.

Remove the variants taking a fully qualified LogSeverity. Instead
use a lambda with "using" statements to translate both qualified
and unqualified names into valid expressions.

Compile-time regression was measured as 0.1s for a thousand LOG
statements on a z840.

Update tests.

Bug: 31338270
Test: m
Test: mmma system/core/base && $ANDROID_HOST_OUT/nativetest64/libbase_test/libbase_test64
Change-Id: I36fdf30a9d535b19543307b85d1b3c19a97f20dd
2016-09-24 10:18:38 -07:00
Andreas Gampe
436f5a031f Base: Add more log macros
Add WOULD_LOG to determine whether a given severity would be logged.

Add LOG_STREAM to have direct access to a logging stream.

Add LOG_S variants that take a fully qualified severity. This allows
complex expressions as parameters, e.g., ternaries for conditional
severity levels.

Add tests.

Bug: 31338270
Test: m
Test: mmma system/core/base && $ANDROID_HOST_OUT/nativetest64/libbase_test/libbase_test64
Change-Id: I242b960594e68caff6db9cd8aaa4ce8aaf90474c
2016-09-22 12:47:40 -07:00
Andreas Gampe
d8f26e2ac9 Base: Fix dangling-else in CHECK_STROP
Follow-up to commit 2527628eda.

Bug: 26962895
Bug: 31338270
Test: m
Test: mmma system/core/base && $ANDROID_HOST_OUT/nativetest64/libbase_test/libbase_test64
Change-Id: Ifd71314e146ebf3957cc053ee95ef85002c909b4
2016-09-13 14:16:37 -07:00
Andreas Gampe
2691e335fe Base: Add AbortFunction for logging
Add a hook to modify FATAL behavior. Add a test.

Bug: 31338270
Test: m
Test: mmma system/core/base && $ANDROID_HOST_OUT/nativetest64/libbase_test/libbase_test64
Change-Id: I966da319cda613738b3f2ccdac8c21900d6a5c72
2016-09-08 15:33:27 -07:00
Andreas Gampe
550829d84b Base: Add INTERNAL_FATAL to logging severity
Add the INTERNAL_FATAL level. It will print 'F' like FATAL, but
does not abort after logging.

Add a test to logging_test.

Bug: 31338270
Test: m
Test: mmma system/core/base && adb sync && adb shell /data/nativetest/libbase_test/libbase_test32
Change-Id: Idf74c08e8516881efccaefc58fa3f41d57e56396
2016-09-07 18:19:42 -07:00
Andreas Gampe
22847131da Base: assume and use C++11 in libbase
Assume C++11 support. logging.h already used constexpr before,
macros.h now also does no longer check the language level.

Use constexpr for the logging evaluator. This allows the usage
of CHECK and co in other constexpr expressions in C++14.

Test: m checkbuild (N9)
Change-Id: Ifdffa074271fff1f9949c48829a185800ec5e524
2016-09-01 13:38:12 -07:00
Elliott Hughes
7bc87a5a78 Move init's kernel logging into libbase.
This will let other stuff (such as adbd and recovery) use it too.

Bug: http://b/28467098
Change-Id: Idab51f438ed3edd6fe65a56c4b396eaff5f3833e
2016-08-04 16:09:39 -07:00
Chih-Hung Hsieh
c713bce901 Fix misc-macro-parentheses warnings in init and other core modules.
Bug: 28705665
Change-Id: Ice67cebb8c42538f8fb9cf1756678f41a9d68a31
2016-05-18 18:11:49 -07:00
Elliott Hughes
54c72aaccc Fix <android-base/*.h> header guards.
I've been meaning to do this for a while, and it came up on the bug below
that there have been conflicts with similar-named files in <base/*.h>,
so let's rule out one possible explanation.

Bug: http://b/27804373
Change-Id: I69e5d52b6260c573c308513420aee0e281426bd4
2016-03-23 15:04:52 -07:00
Yabin Cui
2527628eda base: Avoid compilation error when compiled with -Wdangling-else.
As logging macros uses `if xxx else yyy` style, it is reported as an
error when DCHECK() is compiled with -Wdangling-else option. Because
after preprocess, DCHECK(x) becomes:
if (EnableDChecks)
  if (x)
    ;
  else
    LogMessage(FATAL) << yyy;

This CL avoids compilation error by replacing `if xxx else yyy`
with `xxx && yyy` or `!(xxx) || yyy`.

Bug: 26962895

Change-Id: Ib0bf242cc04a238ec31a1ab66b53fc8a5b5ed28f
2016-03-21 17:46:21 -07:00
Chih-Hung Hsieh
7e0e14ca84 Make CHECK(x) work with static analyzer.
When __clang_analyzer__ is defined call abort after FATAL LogMessage.
BUG: 27379879

Change-Id: I198aad2be1191b6eb45db5333f94436f619facd9
2016-03-02 09:23:02 -08:00
Elliott Hughes
f2584be414 Rename base/ to android-base/.
Bug: http://b/26023797
Change-Id: Ie6c63bf86bed05faab87d290de6f34d9af3532a8
2015-12-07 14:31:53 -08:00
Renamed from base/include/base/logging.h (Browse further)